var Dpr = 1,
  uAgent = window.navigator.userAgent;
var isIOS = uAgent.match(/iphone/i);
var isYIXIN = uAgent.match(/yixin/i);
var is2345 = uAgent.match(/Mb2345/i);
var ishaosou = uAgent.match(/mso_app/i);
var isSogou = uAgent.match(/sogoumobilebrowser/ig);
var isLiebao = uAgent.match(/liebaofast/i);
var isGnbr = uAgent.match(/GNBR/i);

function resizeRoot() {
  var wDpr, wFsize
  var wWidth = (screen.width > 0) ? (window.innerWidth >= screen.width || window.innerWidth == 0) ? screen.width : window.innerWidth : window.innerWidth;
  var wHeight = (screen.height > 0) ? (window.innerHeight >= screen.height || window.innerHeight == 0) ? screen.height : window.innerHeight : window.innerHeight;
  if (window.devicePixelRatio) {
    wDpr = window.devicePixelRatio;
  } else {
    wDpr = isIOS ? wWidth > 818 ? 3 : wWidth > 480 ? 2 : 1 : 1;
  }
  if (isIOS) {
    wWidth = screen.width;
    wHeight = screen.height;
  }
  // if(window.orientation==90||window.orientation==-90){
  //     wWidth = wHeight;
  // }else if((window.orientation==180||window.orientation==0)){
  // }
  if (wWidth > wHeight) {
    wWidth = wHeight;
  }

  wFsize = wWidth > 1080 ? 144 : wWidth / 7.5;
  wFsize = wFsize > 20 ? wFsize : 20;
  window.screenWidth_ = wWidth;
  if (isYIXIN || is2345 || ishaosou || isSogou || isLiebao || isGnbr) { //YIXIN 和 2345 这里有个刚调用系统浏览器时候的bug，需要一点延迟来获取
    setTimeout(function () {
      wWidth = (screen.width > 0) ? (window.innerWidth >= screen.width || window.innerWidth == 0) ? screen.width : window.innerWidth : window.innerWidth;
      wHeight = (screen.height > 0) ? (window.innerHeight >= screen.height || window.innerHeight == 0) ? screen.height : window.innerHeight : window.innerHeight;
      wFsize = wWidth > 1080 ? 144 : wWidth / 7.5;
      wFsize = wFsize > 20 ? wFsize : 20;
      // document.getElementsByTagName('html')[0].dataset.dpr = wDpr;
      document.getElementsByTagName('html')[0].style.fontSize = wFsize + 'px';
      document.getElementById("fixed").style.display = "none";
    }, 500);
  } else {
    // document.getElementsByTagName('html')[0].dataset.dpr = wDpr;
    document.getElementsByTagName('html')[0].style.fontSize = wFsize + 'px';
    // document.getElementById("fixed").style.display="none";
  }
  // alert("fz="+wFsize+";dpr="+window.devicePixelRatio+";width="+wWidth+";sw="+screen.width+";wiw="+window.innerWidth+";wsw="+window.screen.width+window.screen.availWidth);


  var html = document.documentElement
  var a = parseFloat(window.getComputedStyle(html, null).fontSize);
  var b = parseFloat(html.style.fontSize);
  if (a != b) {
    var bl = a / b
    html.style.fontSize = b / bl + "px";
  }
  // alert("wWidth:"+wWidth+"+wHeight:"+wHeight+"+screen.width:"+screen.width+"+window.innerWidth:"+window.innerWidth+"+wFsize:"+wFsize+"+a:"+a+"+b:"+b+"+html.style.fontSize:"+html.style.fontSize)
  // // alert("wWidth:"+wWidth+"wHeight:"+wHeight)
  // // 360 637 360 360 48 48 48 48
}
resizeRoot();